课程名称︰经济学二 课程性质︰选修兼A5通识 课程教师︰李晓云 开课学院：社科院 开课系所︰经济系 考试日期（年月日）︰103.1.10 考试时限（分钟）：120 min. 是否需发放奖励金：是 （如未明确表示，则不予发放） 试题 : ※本份试题共八题(二面)，请同学於作答前务必检查。 ※请於答案卷上作答，无须抄题。 ※满分100分。 一、(13%)假设你在考虑中华电信的二种3G行动网际网路月租型方案，方案一，每月支付 450元，享1.5GB(1GB大约等於1000MB)免费传输量，超过1.5GB者每MB收费1.64元； 方案二，每月固定支付850元，国内无限浏览网际网路。你每月使用3G行动上网之需 求为QD=3500-1000P，其中P为每MB价格，Q为每月上网使用传输量(MB)。 (1)在这二种方案下，你每月各会上网使用多少传输量(MB)？(4%) (2)在这两种方案下，你的消费者剩余各为多少？请绘图说明并计算出数值。(6%) (3)你会选择哪一种方案，为什麽？(3%) 二、(11%)Suppose that the typical medical procedure has a cost of $570, yet a health insurance pays only $150 out of pocket. Her insurance company pays the remaining $420. If the market demand equations: QD=1000-P. (1) Solve for the equilibrium price and the equilibrium quantity if each procedure has a price of $570.(4%) (2) If the government imposes a price ceiling of $450 and subsidizes $120 in this , then how much producer surplus will be in the market?(3%) (3) Show the quantity of procedures demanded if consumers pay only $150 per procedure. If the cost of each procedure to society is truly $570, and if individuals have health insurance as just described, will the number of procedures performed maximize total surplus. How much total surplus will be in the market?(4%) 三、(14%)为避免油价调涨致使公共运输全面涨价，政府自100年5月起，提供营业车辆油 价补贴，包括公路与市区客运、计程车、载客小船、船舶运送业等，补助金额随油 价浮动采价差补贴，价差补贴以每公升5元为上限，每月补贴400公升。假设政府以 税收来支应补贴，而每辆车平均下来，政府油价补贴每公升为3元，在无每月补贴400 公升上限问题，且公共运输之石油供需函数分别为QS=-150+3P，QD=300-2P下，其中P 为每公升石油价格，Q为每月石油交易量， (1)请计算对公共运输石油市场之消费者剩余、生产者剩余、及总剩余的影响？(9%) (2)请绘图说明补贴是否会造成无谓损失。(5%) 四、(17%)Having rejected a tariff on textiles, the president of Isoland is now considering the same-sized tax on textile consumption. Suppose that the textile market is described by the following supply and demand equation: QS=3P；QD=60-2P, and the world price of textiles is 10. (1) Solve for the import quantity and the quantity produced by the producer of Isoland before textile consumption tax.(4%) (2) Compute the quantity consumed and thequantity produced in Isoland under a textile consumption tax.(4%) (3) Solve for tax revenue and deadweight loss of textile consumption tax. (4%) (4) Which raises more revenue for the government - the consumption tax or the tariff? Which has a smaller deadweight loss?(5%) 五、(17%)假设某一小国国内蒜头供需情形如下：QS=3P-22，QD=42-P，请问 (1)如果该小国可以用每单位12元的价格由世界市场进口任何数量的蒜头，该小国的 蒜头生产及消费各为多少？(4%) (2)如果该国政府认为，每单位12元的进口价格太低，将对本国产业不利，於是课徵 20%的从价关税，这时国内价格为多少？生产及消费各为多少？进口量又为多少？ 关税收入为多少？(10%) (3)如果政府不用关税方式，而以配额方式限制进口数量，配额应设定单位？(3%) 六、(12%)There are three industrial firms in Happy Valley. The government wants to reduce pollution to 120 units, so it gives each firm 30 tradable pollution permits. ┌──┬────────────┬──────────────────┐ │Firm│Initial Pollution Level │Cost of Reducing Pollution by 1 Unit│ ├──┼────────────┼──────────────────┤ │ A │ 70 units │ $20 │ ├──┼────────────┼──────────────────┤ │ B │ 80 units │ 25 │ ├──┼────────────┼──────────────────┤ │ C │ 60 units │ 15 │ ├──┼────────────┼──────────────────┤ │ D │ 50 units │ 10 │ └──┴────────────┴──────────────────┘ (1) Who sells permits and how many do they sell? Who buys permits and how many do they buy? What is the total cost of pollution reduction to this situation?(9%) (2) How much higher would the costs of pollution reduction be if they permits could not traded?(3%) 七、(6%)中国国防部2013年11月公告钓鱼台列屿划入「东海防空识别区」范围。过去钓 鱼台列屿是划入日本防空识别区内，中国此次自行将钓鱼台列屿划设到东海防空识 别区内，势将拉高日本与中国之间的冲突与对立。请以公有资源所学说明应如何解 决钓鱼台列屿的主权问题？ 八、(10%)Please answer the following quetions: (1) Explain why the marginal-cost curve crosses the average-total-cost curve at its minimum?(5%) (2) If the city government implements a lump-sum tax of NT$5,000,000 on each producer of cars. Which of the following curves- average fixed cost, average variable cost, average total cost, and marginal cost- would shift as a result of the lump-sum tax? Why? Show this in a graph. (5%) --

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